Home / 196,351.56-270,990.18-115,786.60

Finding the Fourth Proportional to 196,351.56, 270,990.18 and 115,786.60

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Solution

The fourth proportional to 196,351.56, 270,990.18 and 115,786.60 is: 159,800.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,351.56 : 270,990.18 = 115,786.60 : x
  2. Step 2: Convert to fraction form
    196,351.56/270,990.18 = 115,786.60/x
  3. Step 3: Cross multiply
    196,351.56x = 270,990.18 × 115,786.60
  4. Step 4: Simplify right side
    196,351.56x = 31,377,030,898.11
  5. Step 5: Solve for x
    x = 31,377,030,898.11/196,351.56
  6. Step 6: Final answer
    x = 159,800.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.